Home / 186,873.41-257,795.60-122,314.21

Finding the Fourth Proportional to 186,873.41, 257,795.60 and 122,314.21

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Solution

The fourth proportional to 186,873.41, 257,795.60 and 122,314.21 is: 168,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,873.41 : 257,795.60 = 122,314.21 : x
  2. Step 2: Convert to fraction form
    186,873.41/257,795.60 = 122,314.21/x
  3. Step 3: Cross multiply
    186,873.41x = 257,795.60 × 122,314.21
  4. Step 4: Simplify right side
    186,873.41x = 31,532,063,899.42
  5. Step 5: Solve for x
    x = 31,532,063,899.42/186,873.41
  6. Step 6: Final answer
    x = 168,734.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.